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Annual Report to the Minister

The ERA provides an annual report to the Minister for Energy on the effectiveness of the Wholesale Electricity Market (WEM). The report includes an assessment of any specific events, behaviours or matters that have impacted on the effectiveness of the WEM and also any recommended measures to increase the effectiveness of the WEM in meeting the Wholesale Market Objectives.

The WEM allows for competition between generators and retailers, which is expected to deliver electricity at prices less than would otherwise be possible. The market mechanisms are aimed at ensuring the most efficient and least cost generators are used to supply electricity, thus keeping prices as low as practicable. Customers benefit from having a mechanism that ensures they can use electricity when they need it and the electricity is delivered at the minimum practicable cost.

The ERA’s review of the effectiveness of the WEM is important as it identifies whether there are problems with the market design and if improvements are required to make the market more effective in meeting market objectives.

2016 WEM Report

The ERA is currently undertaking its review of the WEM for the 2016 calendar year.

On 25 July 2017 we released a discussion paper seeking comment from interested parties on issues that will assist us to undertake the 2016 review. We received 9 submissions in response to the discussion paper. The submissions are available below. We are currently formulating our report which will be delivered to the Minister for Energy in December 2017.

ERA papers

Date Documents File type
25-Jul-17 2016 WEM report discussion paper Adobe PDF 1.3 MB

Public submissions

Date Documents File type
14-Sep-17 AGL Adobe PDF 391 kB
06-Sep-17 Australian Energy Market Operator (AEMO) Adobe PDF 508 kB
06-Sep-17 Alinta Energy Adobe PDF 220 kB
06-Sep-17 Australian Energy Council Adobe PDF 175 kB
06-Sep-17 Bluewaters Adobe PDF 728 kB
06-Sep-17 ERM Power Adobe PDF 5 MB
06-Sep-17 Kleenheat (including Appendix) Adobe PDF 1.6 MB
06-Sep-17 Merredin Energy Adobe PDF 146 kB
06-Sep-17 Noel Schubert Adobe PDF 554 kB
06-Sep-17 Perth Energy Adobe PDF 598 kB
06-Sep-17 Western Power Adobe PDF 669 kB

Previous reviews

Access previous reviews and submissions below.